/* Evaluator for GNU Emacs Lisp interpreter.
- Copyright (C) 1985, 86, 87, 93, 94, 95, 99, 2000, 2001
+ Copyright (C) 1985, 86, 87, 93, 94, 95, 99, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GNU Emacs.
int gcpro_level;
#endif
-Lisp_Object Qautoload, Qmacro, Qexit, Qinteractive, Qcommandp, Qdefun;
+Lisp_Object Qautoload, Qmacro, Qexit, Qinteractive, Qcommandp, Qdefun, Qdefvar;
Lisp_Object Qinhibit_quit, Vinhibit_quit, Vquit_flag;
-Lisp_Object Qmocklisp_arguments, Vmocklisp_arguments, Qmocklisp;
Lisp_Object Qand_rest, Qand_optional;
Lisp_Object Qdebug_on_error;
+Lisp_Object Qdeclare;
/* This holds either the symbol `run-hooks' or nil.
It is nil at an early stage of startup, and when Emacs
/* Maximum size allowed for specpdl allocation */
-int max_specpdl_size;
+EMACS_INT max_specpdl_size;
/* Depth in Lisp evaluations and function calls. */
/* Maximum allowed depth in Lisp evaluations and function calls. */
-int max_lisp_eval_depth;
+EMACS_INT max_lisp_eval_depth;
/* Nonzero means enter debugger before next function call */
int debug_on_next_call;
-/* Non-zero means debuffer may continue. This is zero when the
+/* Non-zero means debugger may continue. This is zero when the
debugger is called during redisplay, where it might not be safe to
continue the interrupted redisplay. */
Lisp_Object Vdebug_on_error;
/* List of conditions and regexps specifying error messages which
- do not enter the debugger even if Vdebug_on_errors says they should. */
+ do not enter the debugger even if Vdebug_on_error says they should. */
Lisp_Object Vdebug_ignored_errors;
int handling_signal;
-void specbind (), record_unwind_protect ();
+/* Function to process declarations in defmacro forms. */
-Lisp_Object run_hook_with_args ();
+Lisp_Object Vmacro_declaration_function;
-Lisp_Object funcall_lambda ();
-extern Lisp_Object ml_apply (); /* Apply a mocklisp function to unevaluated argument list */
+
+static Lisp_Object funcall_lambda P_ ((Lisp_Object, int, Lisp_Object*));
void
init_eval_once ()
Lisp_Object arg;
{
int debug_while_redisplaying;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
Lisp_Object val;
if (lisp_eval_depth + 20 > max_lisp_eval_depth)
/* Interrupting redisplay and resuming it later is not safe under
all circumstances. So, when the debugger returns, abort the
- interupted redisplay by going back to the top-level. */
+ interrupted redisplay by going back to the top-level. */
if (debug_while_redisplaying)
Ftop_level ();
The definition of `For' shows what you have to do. */
DEFUN ("or", For, Sor, 0, UNEVALLED, 0,
- "Eval args until one of them yields non-nil, then return that value.\n\
-The remaining args are not evalled at all.\n\
-If all args return nil, return nil.")
- (args)
+ doc: /* Eval args until one of them yields non-nil, then return that value.
+The remaining args are not evalled at all.
+If all args return nil, return nil.
+usage: (or CONDITIONS ...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object val;
}
DEFUN ("and", Fand, Sand, 0, UNEVALLED, 0,
- "Eval args until one of them yields nil, then return nil.\n\
-The remaining args are not evalled at all.\n\
-If no arg yields nil, return the last arg's value.")
- (args)
+ doc: /* Eval args until one of them yields nil, then return nil.
+The remaining args are not evalled at all.
+If no arg yields nil, return the last arg's value.
+usage: (and CONDITIONS ...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object val;
}
DEFUN ("if", Fif, Sif, 2, UNEVALLED, 0,
- "If COND yields non-nil, do THEN, else do ELSE...\n\
-Returns the value of THEN or the value of the last of the ELSE's.\n\
-THEN must be one expression, but ELSE... can be zero or more expressions.\n\
-If COND yields nil, and there are no ELSE's, the value is nil.")
- (args)
+ doc: /* If COND yields non-nil, do THEN, else do ELSE...
+Returns the value of THEN or the value of the last of the ELSE's.
+THEN must be one expression, but ELSE... can be zero or more expressions.
+If COND yields nil, and there are no ELSE's, the value is nil.
+usage: (if COND THEN ELSE...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object cond;
}
DEFUN ("cond", Fcond, Scond, 0, UNEVALLED, 0,
- "Try each clause until one succeeds.\n\
-Each clause looks like (CONDITION BODY...). CONDITION is evaluated\n\
-and, if the value is non-nil, this clause succeeds:\n\
-then the expressions in BODY are evaluated and the last one's\n\
-value is the value of the cond-form.\n\
-If no clause succeeds, cond returns nil.\n\
-If a clause has one element, as in (CONDITION),\n\
-CONDITION's value if non-nil is returned from the cond-form.")
- (args)
+ doc: /* Try each clause until one succeeds.
+Each clause looks like (CONDITION BODY...). CONDITION is evaluated
+and, if the value is non-nil, this clause succeeds:
+then the expressions in BODY are evaluated and the last one's
+value is the value of the cond-form.
+If no clause succeeds, cond returns nil.
+If a clause has one element, as in (CONDITION),
+CONDITION's value if non-nil is returned from the cond-form.
+usage: (cond CLAUSES...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object clause, val;
}
DEFUN ("progn", Fprogn, Sprogn, 0, UNEVALLED, 0,
- "Eval BODY forms sequentially and return value of last one.")
- (args)
+ doc: /* Eval BODY forms sequentially and return value of last one.
+usage: (progn BODY ...) */)
+ (args)
Lisp_Object args;
{
- register Lisp_Object val, tem;
+ register Lisp_Object val;
Lisp_Object args_left;
struct gcpro gcpro1;
- /* In Mocklisp code, symbols at the front of the progn arglist
- are to be bound to zero. */
- if (!EQ (Vmocklisp_arguments, Qt))
- {
- val = make_number (0);
- while (!NILP (args) && (tem = Fcar (args), SYMBOLP (tem)))
- {
- QUIT;
- specbind (tem, val), args = Fcdr (args);
- }
- }
-
if (NILP(args))
return Qnil;
}
DEFUN ("prog1", Fprog1, Sprog1, 1, UNEVALLED, 0,
- "Eval FIRST and BODY sequentially; value from FIRST.\n\
-The value of FIRST is saved during the evaluation of the remaining args,\n\
-whose values are discarded.")
- (args)
+ doc: /* Eval FIRST and BODY sequentially; value from FIRST.
+The value of FIRST is saved during the evaluation of the remaining args,
+whose values are discarded.
+usage: (prog1 FIRST BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
}
DEFUN ("prog2", Fprog2, Sprog2, 2, UNEVALLED, 0,
- "Eval X, Y and BODY sequentially; value from Y.\n\
-The value of Y is saved during the evaluation of the remaining args,\n\
-whose values are discarded.")
- (args)
+ doc: /* Eval X, Y and BODY sequentially; value from Y.
+The value of Y is saved during the evaluation of the remaining args,
+whose values are discarded.
+usage: (prog2 X Y BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
}
DEFUN ("setq", Fsetq, Ssetq, 0, UNEVALLED, 0,
- "Set each SYM to the value of its VAL.\n\
-The symbols SYM are variables; they are literal (not evaluated).\n\
-The values VAL are expressions; they are evaluated.\n\
-Thus, (setq x (1+ y)) sets `x' to the value of `(1+ y)'.\n\
-The second VAL is not computed until after the first SYM is set, and so on;\n\
-each VAL can use the new value of variables set earlier in the `setq'.\n\
-The return value of the `setq' form is the value of the last VAL.")
- (args)
+ doc: /* Set each SYM to the value of its VAL.
+The symbols SYM are variables; they are literal (not evaluated).
+The values VAL are expressions; they are evaluated.
+Thus, (setq x (1+ y)) sets `x' to the value of `(1+ y)'.
+The second VAL is not computed until after the first SYM is set, and so on;
+each VAL can use the new value of variables set earlier in the `setq'.
+The return value of the `setq' form is the value of the last VAL.
+usage: (setq SYM VAL SYM VAL ...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object args_left;
}
DEFUN ("quote", Fquote, Squote, 1, UNEVALLED, 0,
- "Return the argument, without evaluating it. `(quote x)' yields `x'.")
- (args)
+ doc: /* Return the argument, without evaluating it. `(quote x)' yields `x'.
+usage: (quote ARG) */)
+ (args)
Lisp_Object args;
{
return Fcar (args);
}
DEFUN ("function", Ffunction, Sfunction, 1, UNEVALLED, 0,
- "Like `quote', but preferred for objects which are functions.\n\
-In byte compilation, `function' causes its argument to be compiled.\n\
-`quote' cannot do that.")
- (args)
+ doc: /* Like `quote', but preferred for objects which are functions.
+In byte compilation, `function' causes its argument to be compiled.
+`quote' cannot do that.
+usage: (function ARG) */)
+ (args)
Lisp_Object args;
{
return Fcar (args);
DEFUN ("interactive-p", Finteractive_p, Sinteractive_p, 0, 0, 0,
- "Return t if function in which this appears was called interactively.\n\
-This means that the function was called with call-interactively (which\n\
-includes being called as the binding of a key)\n\
-and input is currently coming from the keyboard (not in keyboard macro).")
- ()
+ doc: /* Return t if function in which this appears was called interactively.
+This means that the function was called with call-interactively (which
+includes being called as the binding of a key)
+and input is currently coming from the keyboard (not in keyboard macro). */)
+ ()
{
return interactive_p (1) ? Qt : Qnil;
}
btp = btp->next;
/* If we're running an Emacs 18-style byte-compiled function, there
- may be a frame for Fbytecode. Now, given the strictest
- definition, this function isn't really being called
- interactively, but because that's the way Emacs 18 always builds
- byte-compiled functions, we'll accept it for now. */
- if (EQ (*btp->function, Qbytecode))
- btp = btp->next;
+ may be a frame for Fbytecode at the top level. In any version of
+ Emacs there can be Fbytecode frames for subexpressions evaluated
+ inside catch and condition-case. Skip past them.
- /* If this isn't a byte-compiled function, then we may now be
+ If this isn't a byte-compiled function, then we may now be
looking at several frames for special forms. Skip past them. */
- while (btp &&
- btp->nargs == UNEVALLED)
+ while (btp
+ && (EQ (*btp->function, Qbytecode)
+ || btp->nargs == UNEVALLED))
btp = btp->next;
/* btp now points at the frame of the innermost function that isn't
DEFUN ("defun", Fdefun, Sdefun, 2, UNEVALLED, 0,
- "Define NAME as a function.\n\
-The definition is (lambda ARGLIST [DOCSTRING] BODY...).\n\
-See also the function `interactive'.")
- (args)
+ doc: /* Define NAME as a function.
+The definition is (lambda ARGLIST [DOCSTRING] BODY...).
+See also the function `interactive'.
+usage: (defun NAME ARGLIST [DOCSTRING] BODY...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object fn_name;
defn = Fcons (Qlambda, Fcdr (args));
if (!NILP (Vpurify_flag))
defn = Fpurecopy (defn);
+ if (CONSP (XSYMBOL (fn_name)->function)
+ && EQ (XCAR (XSYMBOL (fn_name)->function), Qautoload))
+ LOADHIST_ATTACH (Fcons (Qt, fn_name));
Ffset (fn_name, defn);
LOADHIST_ATTACH (fn_name);
return fn_name;
}
DEFUN ("defmacro", Fdefmacro, Sdefmacro, 2, UNEVALLED, 0,
- "Define NAME as a macro.\n\
-The definition is (macro lambda ARGLIST [DOCSTRING] BODY...).\n\
-When the macro is called, as in (NAME ARGS...),\n\
-the function (lambda ARGLIST BODY...) is applied to\n\
-the list ARGS... as it appears in the expression,\n\
-and the result should be a form to be evaluated instead of the original.")
- (args)
+ doc: /* Define NAME as a macro.
+The actual definition looks like
+ (macro lambda ARGLIST [DOCSTRING] [DECL] BODY...).
+When the macro is called, as in (NAME ARGS...),
+the function (lambda ARGLIST BODY...) is applied to
+the list ARGS... as it appears in the expression,
+and the result should be a form to be evaluated instead of the original.
+
+DECL is a declaration, optional, which can specify how to indent
+calls to this macro and how Edebug should handle it. It looks like this:
+ (declare SPECS...)
+The elements can look like this:
+ (indent INDENT)
+ Set NAME's `lisp-indent-function' property to INDENT.
+
+ (edebug DEBUG)
+ Set NAME's `edebug-form-spec' property to DEBUG. (This is
+ equivalent to writing a `def-edebug-spec' for the macro.
+usage: (defmacro NAME ARGLIST [DOCSTRING] [DECL] BODY...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object fn_name;
register Lisp_Object defn;
+ Lisp_Object lambda_list, doc, tail;
fn_name = Fcar (args);
- defn = Fcons (Qmacro, Fcons (Qlambda, Fcdr (args)));
+ lambda_list = Fcar (Fcdr (args));
+ tail = Fcdr (Fcdr (args));
+
+ doc = Qnil;
+ if (STRINGP (Fcar (tail)))
+ {
+ doc = Fcar (tail);
+ tail = Fcdr (tail);
+ }
+
+ while (CONSP (Fcar (tail))
+ && EQ (Fcar (Fcar (tail)), Qdeclare))
+ {
+ if (!NILP (Vmacro_declaration_function))
+ {
+ struct gcpro gcpro1;
+ GCPRO1 (args);
+ call2 (Vmacro_declaration_function, fn_name, Fcar (tail));
+ UNGCPRO;
+ }
+
+ tail = Fcdr (tail);
+ }
+
+ if (NILP (doc))
+ tail = Fcons (lambda_list, tail);
+ else
+ tail = Fcons (lambda_list, Fcons (doc, tail));
+ defn = Fcons (Qmacro, Fcons (Qlambda, tail));
+
if (!NILP (Vpurify_flag))
defn = Fpurecopy (defn);
+ if (CONSP (XSYMBOL (fn_name)->function)
+ && EQ (XCAR (XSYMBOL (fn_name)->function), Qautoload))
+ LOADHIST_ATTACH (Fcons (Qt, fn_name));
Ffset (fn_name, defn);
LOADHIST_ATTACH (fn_name);
return fn_name;
}
-DEFUN ("defvaralias", Fdefvaralias, Sdefvaralias, 2, 2, 0,
- "Make SYMBOL a variable alias for symbol ALIASED.\n\
-Setting the value of SYMBOL will subsequently set the value of ALIASED,\n\
-and getting the value of SYMBOL will return the value ALIASED has.\n\
-ALIASED nil means remove the alias; SYMBOL is unbound after that.")
- (symbol, aliased)
- Lisp_Object symbol, aliased;
+DEFUN ("defvaralias", Fdefvaralias, Sdefvaralias, 2, 3, 0,
+ doc: /* Make SYMBOL a variable alias for symbol ALIASED.
+Setting the value of SYMBOL will subsequently set the value of ALIASED,
+and getting the value of SYMBOL will return the value ALIASED has.
+ALIASED nil means remove the alias; SYMBOL is unbound after that.
+Third arg DOCSTRING, if non-nil, is documentation for SYMBOL. */)
+ (symbol, aliased, docstring)
+ Lisp_Object symbol, aliased, docstring;
{
struct Lisp_Symbol *sym;
-
- CHECK_SYMBOL (symbol, 0);
- CHECK_SYMBOL (aliased, 1);
+
+ CHECK_SYMBOL (symbol);
+ CHECK_SYMBOL (aliased);
if (SYMBOL_CONSTANT_P (symbol))
error ("Cannot make a constant an alias");
sym->indirect_variable = 1;
sym->value = aliased;
sym->constant = SYMBOL_CONSTANT_P (aliased);
- LOADHIST_ATTACH (symbol);
-
+ LOADHIST_ATTACH (Fcons (Qdefvar, symbol));
+ if (!NILP (docstring))
+ Fput (symbol, Qvariable_documentation, docstring);
+
return aliased;
}
DEFUN ("defvar", Fdefvar, Sdefvar, 1, UNEVALLED, 0,
- "Define SYMBOL as a variable.\n\
-You are not required to define a variable in order to use it,\n\
-but the definition can supply documentation and an initial value\n\
-in a way that tags can recognize.\n\n\
-INITVALUE is evaluated, and used to set SYMBOL, only if SYMBOL's value is void.\n\
-If SYMBOL is buffer-local, its default value is what is set;\n\
- buffer-local values are not affected.\n\
-INITVALUE and DOCSTRING are optional.\n\
-If DOCSTRING starts with *, this variable is identified as a user option.\n\
- This means that M-x set-variable recognizes it.\n\
- See also `user-variable-p'.\n\
-If INITVALUE is missing, SYMBOL's value is not set.")
- (args)
+ doc: /* Define SYMBOL as a variable.
+You are not required to define a variable in order to use it,
+but the definition can supply documentation and an initial value
+in a way that tags can recognize.
+
+INITVALUE is evaluated, and used to set SYMBOL, only if SYMBOL's value is void.
+If SYMBOL is buffer-local, its default value is what is set;
+ buffer-local values are not affected.
+INITVALUE and DOCSTRING are optional.
+If DOCSTRING starts with *, this variable is identified as a user option.
+ This means that M-x set-variable recognizes it.
+ See also `user-variable-p'.
+If INITVALUE is missing, SYMBOL's value is not set.
+usage: (defvar SYMBOL &optional INITVALUE DOCSTRING) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object sym, tem, tail;
tem = Fpurecopy (tem);
Fput (sym, Qvariable_documentation, tem);
}
- LOADHIST_ATTACH (sym);
+ LOADHIST_ATTACH (Fcons (Qdefvar, sym));
}
else
- /* A (defvar <var>) should not take precedence in the load-history over
- an earlier (defvar <var> <val>), so only add to history if the default
- value is still unbound. */
- if (NILP (tem))
- LOADHIST_ATTACH (sym);
-
+ /* Simple (defvar <var>) should not count as a definition at all.
+ It could get in the way of other definitions, and unloading this
+ package could try to make the variable unbound. */
+ ;
+
return sym;
}
DEFUN ("defconst", Fdefconst, Sdefconst, 2, UNEVALLED, 0,
- "Define SYMBOL as a constant variable.\n\
-The intent is that neither programs nor users should ever change this value.\n\
-Always sets the value of SYMBOL to the result of evalling INITVALUE.\n\
-If SYMBOL is buffer-local, its default value is what is set;\n\
- buffer-local values are not affected.\n\
-DOCSTRING is optional.")
- (args)
+ doc: /* Define SYMBOL as a constant variable.
+The intent is that neither programs nor users should ever change this value.
+Always sets the value of SYMBOL to the result of evalling INITVALUE.
+If SYMBOL is buffer-local, its default value is what is set;
+ buffer-local values are not affected.
+DOCSTRING is optional.
+usage: (defconst SYMBOL INITVALUE [DOCSTRING]) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object sym, tem;
tem = Fpurecopy (tem);
Fput (sym, Qvariable_documentation, tem);
}
- LOADHIST_ATTACH (sym);
+ LOADHIST_ATTACH (Fcons (Qdefvar, sym));
return sym;
}
DEFUN ("user-variable-p", Fuser_variable_p, Suser_variable_p, 1, 1, 0,
- "Returns t if VARIABLE is intended to be set and modified by users.\n\
-\(The alternative is a variable used internally in a Lisp program.)\n\
-Determined by whether the first character of the documentation\n\
-for the variable is `*' or if the variable is customizable (has a non-nil\n\
-value of any of `custom-type', `custom-loads' or `standard-value'\n\
-on its property list).")
- (variable)
+ doc: /* Returns t if VARIABLE is intended to be set and modified by users.
+\(The alternative is a variable used internally in a Lisp program.)
+Determined by whether the first character of the documentation
+for the variable is `*' or if the variable is customizable (has a non-nil
+value of any of `custom-type', `custom-loads' or `standard-value'
+on its property list). */)
+ (variable)
Lisp_Object variable;
{
Lisp_Object documentation;
if (INTEGERP (documentation) && XINT (documentation) < 0)
return Qt;
if (STRINGP (documentation)
- && ((unsigned char) XSTRING (documentation)->data[0] == '*'))
+ && ((unsigned char) SREF (documentation, 0) == '*'))
return Qt;
/* If it is (STRING . INTEGER), a negative integer means a user variable. */
if (CONSP (documentation)
}
\f
DEFUN ("let*", FletX, SletX, 1, UNEVALLED, 0,
- "Bind variables according to VARLIST then eval BODY.\n\
-The value of the last form in BODY is returned.\n\
-Each element of VARLIST is a symbol (which is bound to nil)\n\
-or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).\n\
-Each VALUEFORM can refer to the symbols already bound by this VARLIST.")
- (args)
+ doc: /* Bind variables according to VARLIST then eval BODY.
+The value of the last form in BODY is returned.
+Each element of VARLIST is a symbol (which is bound to nil)
+or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).
+Each VALUEFORM can refer to the symbols already bound by this VARLIST.
+usage: (let* VARLIST BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object varlist, val, elt;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3;
GCPRO3 (args, elt, varlist);
}
DEFUN ("let", Flet, Slet, 1, UNEVALLED, 0,
- "Bind variables according to VARLIST then eval BODY.\n\
-The value of the last form in BODY is returned.\n\
-Each element of VARLIST is a symbol (which is bound to nil)\n\
-or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).\n\
-All the VALUEFORMs are evalled before any symbols are bound.")
- (args)
+ doc: /* Bind variables according to VARLIST then eval BODY.
+The value of the last form in BODY is returned.
+Each element of VARLIST is a symbol (which is bound to nil)
+or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).
+All the VALUEFORMs are evalled before any symbols are bound.
+usage: (let VARLIST BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object *temps, tem;
register Lisp_Object elt, varlist;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
register int argnum;
struct gcpro gcpro1, gcpro2;
}
DEFUN ("while", Fwhile, Swhile, 1, UNEVALLED, 0,
- "If TEST yields non-nil, eval BODY... and repeat.\n\
-The order of execution is thus TEST, BODY, TEST, BODY and so on\n\
-until TEST returns nil.")
- (args)
+ doc: /* If TEST yields non-nil, eval BODY... and repeat.
+The order of execution is thus TEST, BODY, TEST, BODY and so on
+until TEST returns nil.
+usage: (while TEST BODY...) */)
+ (args)
Lisp_Object args;
{
- Lisp_Object test, body, tem;
+ Lisp_Object test, body;
struct gcpro gcpro1, gcpro2;
GCPRO2 (test, body);
test = Fcar (args);
body = Fcdr (args);
- while (tem = Feval (test),
- (!EQ (Vmocklisp_arguments, Qt) ? XINT (tem) : !NILP (tem)))
+ while (!NILP (Feval (test)))
{
QUIT;
Fprogn (body);
}
DEFUN ("macroexpand", Fmacroexpand, Smacroexpand, 1, 2, 0,
- "Return result of expanding macros at top level of FORM.\n\
-If FORM is not a macro call, it is returned unchanged.\n\
-Otherwise, the macro is expanded and the expansion is considered\n\
-in place of FORM. When a non-macro-call results, it is returned.\n\n\
-The second optional arg ENVIRONMENT specifies an environment of macro\n\
-definitions to shadow the loaded ones for use in file byte-compilation.")
- (form, environment)
+ doc: /* Return result of expanding macros at top level of FORM.
+If FORM is not a macro call, it is returned unchanged.
+Otherwise, the macro is expanded and the expansion is considered
+in place of FORM. When a non-macro-call results, it is returned.
+
+The second optional arg ENVIRONMENT specifies an environment of macro
+definitions to shadow the loaded ones for use in file byte-compilation. */)
+ (form, environment)
Lisp_Object form;
Lisp_Object environment;
{
}
\f
DEFUN ("catch", Fcatch, Scatch, 1, UNEVALLED, 0,
- "Eval BODY allowing nonlocal exits using `throw'.\n\
-TAG is evalled to get the tag to use; it must not be nil.\n\
-\n\
-Then the BODY is executed.\n\
-Within BODY, (throw TAG) with same tag exits BODY and exits this `catch'.\n\
-If no throw happens, `catch' returns the value of the last BODY form.\n\
-If a throw happens, it specifies the value to return from `catch'.")
- (args)
+ doc: /* Eval BODY allowing nonlocal exits using `throw'.
+TAG is evalled to get the tag to use; it must not be nil.
+
+Then the BODY is executed.
+Within BODY, (throw TAG) with same tag exits BODY and exits this `catch'.
+If no throw happens, `catch' returns the value of the last BODY form.
+If a throw happens, it specifies the value to return from `catch'.
+usage: (catch TAG BODY...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object tag;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
}
DEFUN ("throw", Fthrow, Sthrow, 2, 2, 0,
- "Throw to the catch for TAG and return VALUE from it.\n\
-Both TAG and VALUE are evalled.")
- (tag, value)
+ doc: /* Throw to the catch for TAG and return VALUE from it.
+Both TAG and VALUE are evalled. */)
+ (tag, value)
register Lisp_Object tag, value;
{
register struct catchtag *c;
DEFUN ("unwind-protect", Funwind_protect, Sunwind_protect, 1, UNEVALLED, 0,
- "Do BODYFORM, protecting with UNWINDFORMS.\n\
-If BODYFORM completes normally, its value is returned\n\
-after executing the UNWINDFORMS.\n\
-If BODYFORM exits nonlocally, the UNWINDFORMS are executed anyway.")
- (args)
+ doc: /* Do BODYFORM, protecting with UNWINDFORMS.
+If BODYFORM completes normally, its value is returned
+after executing the UNWINDFORMS.
+If BODYFORM exits nonlocally, the UNWINDFORMS are executed anyway.
+usage: (unwind-protect BODYFORM UNWINDFORMS...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
record_unwind_protect (0, Fcdr (args));
val = Feval (Fcar (args));
struct handler *handlerlist;
DEFUN ("condition-case", Fcondition_case, Scondition_case, 2, UNEVALLED, 0,
- "Regain control when an error is signaled.\n\
-executes BODYFORM and returns its value if no error happens.\n\
-Each element of HANDLERS looks like (CONDITION-NAME BODY...)\n\
-where the BODY is made of Lisp expressions.\n\n\
-A handler is applicable to an error\n\
-if CONDITION-NAME is one of the error's condition names.\n\
-If an error happens, the first applicable handler is run.\n\
-\n\
-The car of a handler may be a list of condition names\n\
-instead of a single condition name.\n\
-\n\
-When a handler handles an error,\n\
-control returns to the condition-case and the handler BODY... is executed\n\
-with VAR bound to (SIGNALED-CONDITIONS . SIGNAL-DATA).\n\
-VAR may be nil; then you do not get access to the signal information.\n\
-\n\
-The value of the last BODY form is returned from the condition-case.\n\
-See also the function `signal' for more info.")
- (args)
+ doc: /* Regain control when an error is signaled.
+Executes BODYFORM and returns its value if no error happens.
+Each element of HANDLERS looks like (CONDITION-NAME BODY...)
+where the BODY is made of Lisp expressions.
+
+A handler is applicable to an error
+if CONDITION-NAME is one of the error's condition names.
+If an error happens, the first applicable handler is run.
+
+The car of a handler may be a list of condition names
+instead of a single condition name.
+
+When a handler handles an error,
+control returns to the condition-case and the handler BODY... is executed
+with VAR bound to (SIGNALED-CONDITIONS . SIGNAL-DATA).
+VAR may be nil; then you do not get access to the signal information.
+
+The value of the last BODY form is returned from the condition-case.
+See also the function `signal' for more info.
+usage: (condition-case VAR BODYFORM HANDLERS...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
var = Fcar (args);
bodyform = Fcar (Fcdr (args));
handlers = Fcdr (Fcdr (args));
- CHECK_SYMBOL (var, 0);
+ CHECK_SYMBOL (var);
for (val = handlers; ! NILP (val); val = Fcdr (val))
{
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
}
\f
-static Lisp_Object find_handler_clause ();
+static Lisp_Object find_handler_clause P_ ((Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object,
+ Lisp_Object *));
DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0,
- "Signal an error. Args are ERROR-SYMBOL and associated DATA.\n\
-This function does not return.\n\n\
-An error symbol is a symbol with an `error-conditions' property\n\
-that is a list of condition names.\n\
-A handler for any of those names will get to handle this signal.\n\
-The symbol `error' should normally be one of them.\n\
-\n\
-DATA should be a list. Its elements are printed as part of the error message.\n\
-If the signal is handled, DATA is made available to the handler.\n\
-See also the function `condition-case'.")
- (error_symbol, data)
+ doc: /* Signal an error. Args are ERROR-SYMBOL and associated DATA.
+This function does not return.
+
+An error symbol is a symbol with an `error-conditions' property
+that is a list of condition names.
+A handler for any of those names will get to handle this signal.
+The symbol `error' should normally be one of them.
+
+DATA should be a list. Its elements are printed as part of the error message.
+If the signal is handled, DATA is made available to the handler.
+See also the function `condition-case'. */)
+ (error_symbol, data)
Lisp_Object error_symbol, data;
{
/* When memory is full, ERROR-SYMBOL is nil,
- and DATA is (REAL-ERROR-SYMBOL . REAL-DATA). */
+ and DATA is (REAL-ERROR-SYMBOL . REAL-DATA).
+ That is a special case--don't do this in other situations. */
register struct handler *allhandlers = handlerlist;
Lisp_Object conditions;
extern int gc_in_progress;
Lisp_Object debugger_value;
Lisp_Object string;
Lisp_Object real_error_symbol;
- extern int display_hourglass_p;
struct backtrace *bp;
immediate_quit = handling_signal = 0;
else
real_error_symbol = error_symbol;
+#if 0 /* rms: I don't know why this was here,
+ but it is surely wrong for an error that is handled. */
#ifdef HAVE_X_WINDOWS
if (display_hourglass_p)
cancel_hourglass ();
#endif
+#endif
/* This hook is used by edebug. */
- if (! NILP (Vsignal_hook_function))
+ if (! NILP (Vsignal_hook_function)
+ && ! NILP (error_symbol))
call2 (Vsignal_hook_function, error_symbol, data);
conditions = Fget (real_error_symbol, Qerror_conditions);
/* Remember from where signal was called. Skip over the frame for
`signal' itself. If a frame for `error' follows, skip that,
- too. */
+ too. Don't do this when ERROR_SYMBOL is nil, because that
+ is a memory-full error. */
Vsignaling_function = Qnil;
- if (backtrace_list)
+ if (backtrace_list && !NILP (error_symbol))
{
bp = backtrace_list->next;
if (bp && bp->function && EQ (*bp->function, Qerror))
clause = find_handler_clause (handlerlist->handler, conditions,
error_symbol, data, &debugger_value);
-#if 0 /* Most callers are not prepared to handle gc if this returns.
- So, since this feature is not very useful, take it out. */
- /* If have called debugger and user wants to continue,
- just return nil. */
- if (EQ (clause, Qlambda))
- return debugger_value;
-#else
if (EQ (clause, Qlambda))
{
/* We can't return values to code which signaled an error, but we
else
error ("Cannot return from the debugger in an error");
}
-#endif
if (!NILP (clause))
{
data = Fcons (error_symbol, data);
string = Ferror_message_string (data);
- fatal ("%s", XSTRING (string)->data, 0);
+ fatal ("%s", SDATA (string), 0);
}
/* Return nonzero iff LIST is a non-nil atom or
/* Return 1 if an error with condition-symbols CONDITIONS,
and described by SIGNAL-DATA, should skip the debugger
- according to debugger-ignore-errors. */
+ according to debugger-ignored-errors. */
static int
skip_debugger (conditions, data)
|| !NILP (Vdebug_on_signal)) /* This says call debugger even if
there is a handler. */
{
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
int debugger_called = 0;
Lisp_Object sig_symbol, combined_data;
/* This is set to 1 if we are handling a memory-full error,
abort ();
}
\f
-DEFUN ("commandp", Fcommandp, Scommandp, 1, 1, 0,
- "T if FUNCTION makes provisions for interactive calling.\n\
-This means it contains a description for how to read arguments to give it.\n\
-The value is nil for an invalid function or a symbol with no function\n\
-definition.\n\
-\n\
-Interactively callable functions include strings and vectors (treated\n\
-as keyboard macros), lambda-expressions that contain a top-level call\n\
-to `interactive', autoload definitions made by `autoload' with non-nil\n\
-fourth argument, and some of the built-in functions of Lisp.\n\
-\n\
-Also, a symbol satisfies `commandp' if its function definition does so.")
- (function)
- Lisp_Object function;
+DEFUN ("commandp", Fcommandp, Scommandp, 1, 2, 0,
+ doc: /* Non-nil if FUNCTION makes provisions for interactive calling.
+This means it contains a description for how to read arguments to give it.
+The value is nil for an invalid function or a symbol with no function
+definition.
+
+Interactively callable functions include strings and vectors (treated
+as keyboard macros), lambda-expressions that contain a top-level call
+to `interactive', autoload definitions made by `autoload' with non-nil
+fourth argument, and some of the built-in functions of Lisp.
+
+Also, a symbol satisfies `commandp' if its function definition does so.
+
+If the optional argument FOR-CALL-INTERACTIVELY is non-nil,
+then strings and vectors are not accepted. */)
+ (function, for_call_interactively)
+ Lisp_Object function, for_call_interactively;
{
register Lisp_Object fun;
register Lisp_Object funcar;
have an element whose index is COMPILED_INTERACTIVE, which is
where the interactive spec is stored. */
else if (COMPILEDP (fun))
- return ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE
+ return ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE
? Qt : Qnil);
/* Strings and vectors are keyboard macros. */
- if (STRINGP (fun) || VECTORP (fun))
+ if (NILP (for_call_interactively) && (STRINGP (fun) || VECTORP (fun)))
return Qt;
/* Lists may represent commands. */
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
if (EQ (funcar, Qlambda))
return Fassq (Qinteractive, Fcdr (Fcdr (fun)));
- if (EQ (funcar, Qmocklisp))
- return Qt; /* All mocklisp functions can be called interactively */
if (EQ (funcar, Qautoload))
return Fcar (Fcdr (Fcdr (Fcdr (fun))));
else
/* ARGSUSED */
DEFUN ("autoload", Fautoload, Sautoload, 2, 5, 0,
- "Define FUNCTION to autoload from FILE.\n\
-FUNCTION is a symbol; FILE is a file name string to pass to `load'.\n\
-Third arg DOCSTRING is documentation for the function.\n\
-Fourth arg INTERACTIVE if non-nil says function can be called interactively.\n\
-Fifth arg TYPE indicates the type of the object:\n\
- nil or omitted says FUNCTION is a function,\n\
- `keymap' says FUNCTION is really a keymap, and\n\
- `macro' or t says FUNCTION is really a macro.\n\
-Third through fifth args give info about the real definition.\n\
-They default to nil.\n\
-If FUNCTION is already defined other than as an autoload,\n\
-this does nothing and returns nil.")
- (function, file, docstring, interactive, type)
+ doc: /* Define FUNCTION to autoload from FILE.
+FUNCTION is a symbol; FILE is a file name string to pass to `load'.
+Third arg DOCSTRING is documentation for the function.
+Fourth arg INTERACTIVE if non-nil says function can be called interactively.
+Fifth arg TYPE indicates the type of the object:
+ nil or omitted says FUNCTION is a function,
+ `keymap' says FUNCTION is really a keymap, and
+ `macro' or t says FUNCTION is really a macro.
+Third through fifth args give info about the real definition.
+They default to nil.
+If FUNCTION is already defined other than as an autoload,
+this does nothing and returns nil. */)
+ (function, file, docstring, interactive, type)
Lisp_Object function, file, docstring, interactive, type;
{
#ifdef NO_ARG_ARRAY
Lisp_Object args[4];
#endif
- CHECK_SYMBOL (function, 0);
- CHECK_STRING (file, 1);
+ CHECK_SYMBOL (function);
+ CHECK_STRING (file);
/* If function is defined and not as an autoload, don't override */
if (!EQ (XSYMBOL (function)->function, Qunbound)
do_autoload (fundef, funname)
Lisp_Object fundef, funname;
{
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
Lisp_Object fun, queue, first, second;
struct gcpro gcpro1, gcpro2, gcpro3;
+ /* This is to make sure that loadup.el gives a clear picture
+ of what files are preloaded and when. */
+ if (! NILP (Vpurify_flag))
+ error ("Attempt to autoload %s while preparing to dump",
+ SDATA (SYMBOL_NAME (funname)));
+
fun = funname;
- CHECK_SYMBOL (funname, 0);
+ CHECK_SYMBOL (funname);
GCPRO3 (fun, funname, fundef);
/* Preserve the match data. */
if (!NILP (Fequal (fun, fundef)))
error ("Autoloading failed to define function %s",
- XSYMBOL (funname)->name->data);
+ SDATA (SYMBOL_NAME (funname)));
UNGCPRO;
}
\f
DEFUN ("eval", Feval, Seval, 1, 1, 0,
- "Evaluate FORM and return its value.")
- (form)
+ doc: /* Evaluate FORM and return its value. */)
+ (form)
Lisp_Object form;
{
Lisp_Object fun, val, original_fun, original_args;
abort ();
if (SYMBOLP (form))
- {
- if (EQ (Vmocklisp_arguments, Qt))
- return Fsymbol_value (form);
- val = Fsymbol_value (form);
- if (NILP (val))
- XSETFASTINT (val, 0);
- else if (EQ (val, Qt))
- XSETFASTINT (val, 1);
- return val;
- }
+ return Fsymbol_value (form);
if (!CONSP (form))
return form;
val = Feval (apply1 (Fcdr (fun), original_args));
else if (EQ (funcar, Qlambda))
val = apply_lambda (fun, original_args, 1);
- else if (EQ (funcar, Qmocklisp))
- val = ml_apply (fun, original_args);
else
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
}
done:
- if (!EQ (Vmocklisp_arguments, Qt))
- {
- if (NILP (val))
- XSETFASTINT (val, 0);
- else if (EQ (val, Qt))
- XSETFASTINT (val, 1);
- }
lisp_eval_depth--;
if (backtrace.debug_on_exit)
val = call_debugger (Fcons (Qexit, Fcons (val, Qnil)));
backtrace_list = backtrace.next;
+
+#ifdef HAVE_CARBON
+ mac_check_for_quit_char();
+#endif
return val;
}
\f
DEFUN ("apply", Fapply, Sapply, 2, MANY, 0,
- "Call FUNCTION with our remaining args, using our last arg as list of args.\n\
-Then return the value FUNCTION returns.\n\
-Thus, (apply '+ 1 2 '(3 4)) returns 10.")
- (nargs, args)
+ doc: /* Call FUNCTION with our remaining args, using our last arg as list of args.
+Then return the value FUNCTION returns.
+Thus, (apply '+ 1 2 '(3 4)) returns 10.
+usage: (apply FUNCTION &rest ARGUMENTS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
fun = args [0];
funcall_args = 0;
spread_arg = args [nargs - 1];
- CHECK_LIST (spread_arg, nargs);
+ CHECK_LIST (spread_arg);
numargs = XINT (Flength (spread_arg));
/* Run hook variables in various ways. */
enum run_hooks_condition {to_completion, until_success, until_failure};
+static Lisp_Object run_hook_with_args P_ ((int, Lisp_Object *,
+ enum run_hooks_condition));
DEFUN ("run-hooks", Frun_hooks, Srun_hooks, 0, MANY, 0,
- "Run each hook in HOOKS. Major mode functions use this.\n\
-Each argument should be a symbol, a hook variable.\n\
-These symbols are processed in the order specified.\n\
-If a hook symbol has a non-nil value, that value may be a function\n\
-or a list of functions to be called to run the hook.\n\
-If the value is a function, it is called with no arguments.\n\
-If it is a list, the elements are called, in order, with no arguments.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.")
- (nargs, args)
+ doc: /* Run each hook in HOOKS. Major mode functions use this.
+Each argument should be a symbol, a hook variable.
+These symbols are processed in the order specified.
+If a hook symbol has a non-nil value, that value may be a function
+or a list of functions to be called to run the hook.
+If the value is a function, it is called with no arguments.
+If it is a list, the elements are called, in order, with no arguments.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hooks &rest HOOKS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
}
DEFUN ("run-hook-with-args", Frun_hook_with_args,
- Srun_hook_with_args, 1, MANY, 0,
- "Run HOOK with the specified arguments ARGS.\n\
-HOOK should be a symbol, a hook variable. If HOOK has a non-nil\n\
-value, that value may be a function or a list of functions to be\n\
-called to run the hook. If the value is a function, it is called with\n\
-the given arguments and its return value is returned. If it is a list\n\
-of functions, those functions are called, in order,\n\
-with the given arguments ARGS.\n\
-It is best not to depend on the value return by `run-hook-with-args',\n\
-as that may change.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.")
- (nargs, args)
+ Srun_hook_with_args, 1, MANY, 0,
+ doc: /* Run HOOK with the specified arguments ARGS.
+HOOK should be a symbol, a hook variable. If HOOK has a non-nil
+value, that value may be a function or a list of functions to be
+called to run the hook. If the value is a function, it is called with
+the given arguments and its return value is returned. If it is a list
+of functions, those functions are called, in order,
+with the given arguments ARGS.
+It is best not to depend on the value return by `run-hook-with-args',
+as that may change.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hook-with-args HOOK &rest ARGS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
}
DEFUN ("run-hook-with-args-until-success", Frun_hook_with_args_until_success,
- Srun_hook_with_args_until_success, 1, MANY, 0,
- "Run HOOK with the specified arguments ARGS.\n\
-HOOK should be a symbol, a hook variable. Its value should\n\
-be a list of functions. We call those functions, one by one,\n\
-passing arguments ARGS to each of them, until one of them\n\
-returns a non-nil value. Then we return that value.\n\
-If all the functions return nil, we return nil.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.")
- (nargs, args)
+ Srun_hook_with_args_until_success, 1, MANY, 0,
+ doc: /* Run HOOK with the specified arguments ARGS.
+HOOK should be a symbol, a hook variable. Its value should
+be a list of functions. We call those functions, one by one,
+passing arguments ARGS to each of them, until one of them
+returns a non-nil value. Then we return that value.
+If all the functions return nil, we return nil.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hook-with-args-until-success HOOK &rest ARGS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
}
DEFUN ("run-hook-with-args-until-failure", Frun_hook_with_args_until_failure,
- Srun_hook_with_args_until_failure, 1, MANY, 0,
- "Run HOOK with the specified arguments ARGS.\n\
-HOOK should be a symbol, a hook variable. Its value should\n\
-be a list of functions. We call those functions, one by one,\n\
-passing arguments ARGS to each of them, until one of them\n\
-returns nil. Then we return nil.\n\
-If all the functions return non-nil, we return non-nil.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.")
- (nargs, args)
+ Srun_hook_with_args_until_failure, 1, MANY, 0,
+ doc: /* Run HOOK with the specified arguments ARGS.
+HOOK should be a symbol, a hook variable. Its value should
+be a list of functions. We call those functions, one by one,
+passing arguments ARGS to each of them, until one of them
+returns nil. Then we return nil.
+If all the functions return non-nil, we return non-nil.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hook-with-args-until-failure HOOK &rest ARGS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
The caller (or its caller, etc) must gcpro all of ARGS,
except that it isn't necessary to gcpro ARGS[0]. */
-Lisp_Object
+static Lisp_Object
run_hook_with_args (nargs, args, cond)
int nargs;
Lisp_Object *args;
}
DEFUN ("funcall", Ffuncall, Sfuncall, 1, MANY, 0,
- "Call first argument as a function, passing remaining arguments to it.\n\
-Return the value that function returns.\n\
-Thus, (funcall 'cons 'x 'y) returns (x . y).")
- (nargs, args)
+ doc: /* Call first argument as a function, passing remaining arguments to it.
+Return the value that function returns.
+Thus, (funcall 'cons 'x 'y) returns (x . y).
+usage: (funcall FUNCTION &rest ARGUMENTS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
if (EQ (funcar, Qlambda))
val = funcall_lambda (fun, numargs, args + 1);
- else if (EQ (funcar, Qmocklisp))
- val = ml_apply (fun, Flist (numargs, args + 1));
else if (EQ (funcar, Qautoload))
{
do_autoload (fun, args[0]);
and return the result of evaluation.
FUN must be either a lambda-expression or a compiled-code object. */
-Lisp_Object
+static Lisp_Object
funcall_lambda (fun, nargs, arg_vector)
Lisp_Object fun;
int nargs;
register Lisp_Object *arg_vector;
{
Lisp_Object val, syms_left, next;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
int i, optional, rest;
- if (NILP (Vmocklisp_arguments))
- specbind (Qmocklisp_arguments, Qt); /* t means NOT mocklisp! */
-
if (CONSP (fun))
{
syms_left = XCDR (fun);
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
}
else if (COMPILEDP (fun))
- syms_left = XVECTOR (fun)->contents[COMPILED_ARGLIST];
+ syms_left = AREF (fun, COMPILED_ARGLIST);
else
abort ();
{
/* If we have not actually read the bytecode string
and constants vector yet, fetch them from the file. */
- if (CONSP (XVECTOR (fun)->contents[COMPILED_BYTECODE]))
+ if (CONSP (AREF (fun, COMPILED_BYTECODE)))
Ffetch_bytecode (fun);
- val = Fbyte_code (XVECTOR (fun)->contents[COMPILED_BYTECODE],
- XVECTOR (fun)->contents[COMPILED_CONSTANTS],
- XVECTOR (fun)->contents[COMPILED_STACK_DEPTH]);
+ val = Fbyte_code (AREF (fun, COMPILED_BYTECODE),
+ AREF (fun, COMPILED_CONSTANTS),
+ AREF (fun, COMPILED_STACK_DEPTH));
}
return unbind_to (count, val);
}
DEFUN ("fetch-bytecode", Ffetch_bytecode, Sfetch_bytecode,
- 1, 1, 0,
- "If byte-compiled OBJECT is lazy-loaded, fetch it now.")
- (object)
+ 1, 1, 0,
+ doc: /* If byte-compiled OBJECT is lazy-loaded, fetch it now. */)
+ (object)
Lisp_Object object;
{
Lisp_Object tem;
- if (COMPILEDP (object)
- && CONSP (XVECTOR (object)->contents[COMPILED_BYTECODE]))
+ if (COMPILEDP (object) && CONSP (AREF (object, COMPILED_BYTECODE)))
{
- tem = read_doc_string (XVECTOR (object)->contents[COMPILED_BYTECODE]);
+ tem = read_doc_string (AREF (object, COMPILED_BYTECODE));
if (!CONSP (tem))
- error ("invalid byte code");
- XVECTOR (object)->contents[COMPILED_BYTECODE] = XCAR (tem);
- XVECTOR (object)->contents[COMPILED_CONSTANTS] = XCDR (tem);
+ {
+ tem = AREF (object, COMPILED_BYTECODE);
+ if (CONSP (tem) && STRINGP (XCAR (tem)))
+ error ("Invalid byte code in %s", SDATA (XCAR (tem)));
+ else
+ error ("Invalid byte code");
+ }
+ AREF (object, COMPILED_BYTECODE) = XCAR (tem);
+ AREF (object, COMPILED_CONSTANTS) = XCDR (tem);
}
return object;
}
void
grow_specpdl ()
{
- register int count = specpdl_ptr - specpdl;
+ register int count = SPECPDL_INDEX ();
if (specpdl_size >= max_specpdl_size)
{
if (max_specpdl_size < 400)
Lisp_Object ovalue;
Lisp_Object valcontents;
- CHECK_SYMBOL (symbol, 0);
+ CHECK_SYMBOL (symbol);
if (specpdl_ptr == specpdl + specpdl_size)
grow_specpdl ();
/* If the symbol is a list, it is really (SYMBOL WHERE
. CURRENT-BUFFER) where WHERE is either nil, a buffer, or a
frame. If WHERE is a buffer or frame, this indicates we
- bound a variable that had a buffer-local or frmae-local
- binding.. WHERE nil means that the variable had the default
+ bound a variable that had a buffer-local or frame-local
+ binding. WHERE nil means that the variable had the default
value when it was bound. CURRENT-BUFFER is the buffer that
was current when the variable was bound. */
else if (CONSP (specpdl_ptr->symbol))
return value;
}
\f
-#if 0
-
-/* Get the value of symbol's global binding, even if that binding
- is not now dynamically visible. */
-
-Lisp_Object
-top_level_value (symbol)
- Lisp_Object symbol;
-{
- register struct specbinding *ptr = specpdl;
-
- CHECK_SYMBOL (symbol, 0);
- for (; ptr != specpdl_ptr; ptr++)
- {
- if (EQ (ptr->symbol, symbol))
- return ptr->old_value;
- }
- return Fsymbol_value (symbol);
-}
-
-Lisp_Object
-top_level_set (symbol, newval)
- Lisp_Object symbol, newval;
-{
- register struct specbinding *ptr = specpdl;
-
- CHECK_SYMBOL (symbol, 0);
- for (; ptr != specpdl_ptr; ptr++)
- {
- if (EQ (ptr->symbol, symbol))
- {
- ptr->old_value = newval;
- return newval;
- }
- }
- return Fset (symbol, newval);
-}
-
-#endif /* 0 */
-\f
DEFUN ("backtrace-debug", Fbacktrace_debug, Sbacktrace_debug, 2, 2, 0,
- "Set the debug-on-exit flag of eval frame LEVEL levels down to FLAG.\n\
-The debugger is entered when that frame exits, if the flag is non-nil.")
- (level, flag)
+ doc: /* Set the debug-on-exit flag of eval frame LEVEL levels down to FLAG.
+The debugger is entered when that frame exits, if the flag is non-nil. */)
+ (level, flag)
Lisp_Object level, flag;
{
register struct backtrace *backlist = backtrace_list;
register int i;
- CHECK_NUMBER (level, 0);
+ CHECK_NUMBER (level);
for (i = 0; backlist && i < XINT (level); i++)
{
}
DEFUN ("backtrace", Fbacktrace, Sbacktrace, 0, 0, "",
- "Print a trace of Lisp function calls currently active.\n\
-Output stream used is value of `standard-output'.")
- ()
+ doc: /* Print a trace of Lisp function calls currently active.
+Output stream used is value of `standard-output'. */)
+ ()
{
register struct backtrace *backlist = backtrace_list;
register int i;
}
DEFUN ("backtrace-frame", Fbacktrace_frame, Sbacktrace_frame, 1, 1, NULL,
- "Return the function and arguments NFRAMES up from current execution point.\n\
-If that frame has not evaluated the arguments yet (or is a special form),\n\
-the value is (nil FUNCTION ARG-FORMS...).\n\
-If that frame has evaluated its arguments and called its function already,\n\
-the value is (t FUNCTION ARG-VALUES...).\n\
-A &rest arg is represented as the tail of the list ARG-VALUES.\n\
-FUNCTION is whatever was supplied as car of evaluated list,\n\
-or a lambda expression for macro calls.\n\
-If NFRAMES is more than the number of frames, the value is nil.")
- (nframes)
+ doc: /* Return the function and arguments NFRAMES up from current execution point.
+If that frame has not evaluated the arguments yet (or is a special form),
+the value is (nil FUNCTION ARG-FORMS...).
+If that frame has evaluated its arguments and called its function already,
+the value is (t FUNCTION ARG-VALUES...).
+A &rest arg is represented as the tail of the list ARG-VALUES.
+FUNCTION is whatever was supplied as car of evaluated list,
+or a lambda expression for macro calls.
+If NFRAMES is more than the number of frames, the value is nil. */)
+ (nframes)
Lisp_Object nframes;
{
register struct backtrace *backlist = backtrace_list;
register int i;
Lisp_Object tem;
- CHECK_NATNUM (nframes, 0);
+ CHECK_NATNUM (nframes);
/* Find the frame requested. */
for (i = 0; backlist && i < XFASTINT (nframes); i++)
syms_of_eval ()
{
DEFVAR_INT ("max-specpdl-size", &max_specpdl_size,
- "*Limit on number of Lisp variable bindings & unwind-protects.\n\
-If Lisp code tries to make more than this many at once,\n\
-an error is signaled.");
+ doc: /* *Limit on number of Lisp variable bindings & unwind-protects.
+If Lisp code tries to make more than this many at once,
+an error is signaled.
+You can safely use a value considerably larger than the default value,
+if that proves inconveniently small. However, if you increase it too far,
+Emacs could run out of memory trying to make the stack bigger. */);
DEFVAR_INT ("max-lisp-eval-depth", &max_lisp_eval_depth,
- "*Limit on depth in `eval', `apply' and `funcall' before error.\n\
-This limit is to catch infinite recursions for you before they cause\n\
-actual stack overflow in C, which would be fatal for Emacs.\n\
-You can safely make it considerably larger than its default value,\n\
-if that proves inconveniently small.");
+ doc: /* *Limit on depth in `eval', `apply' and `funcall' before error.
+
+This limit serves to catch infinite recursions for you before they cause
+actual stack overflow in C, which would be fatal for Emacs.
+You can safely make it considerably larger than its default value,
+if that proves inconveniently small. However, if you increase it too far,
+Emacs could overflow the real C stack, and crash. */);
DEFVAR_LISP ("quit-flag", &Vquit_flag,
- "Non-nil causes `eval' to abort, unless `inhibit-quit' is non-nil.\n\
-Typing C-g sets `quit-flag' non-nil, regardless of `inhibit-quit'.");
+ doc: /* Non-nil causes `eval' to abort, unless `inhibit-quit' is non-nil.
+Typing C-g sets `quit-flag' non-nil, regardless of `inhibit-quit'. */);
Vquit_flag = Qnil;
DEFVAR_LISP ("inhibit-quit", &Vinhibit_quit,
- "Non-nil inhibits C-g quitting from happening immediately.\n\
-Note that `quit-flag' will still be set by typing C-g,\n\
-so a quit will be signaled as soon as `inhibit-quit' is nil.\n\
-To prevent this happening, set `quit-flag' to nil\n\
-before making `inhibit-quit' nil.");
+ doc: /* Non-nil inhibits C-g quitting from happening immediately.
+Note that `quit-flag' will still be set by typing C-g,
+so a quit will be signaled as soon as `inhibit-quit' is nil.
+To prevent this happening, set `quit-flag' to nil
+before making `inhibit-quit' nil. */);
Vinhibit_quit = Qnil;
Qinhibit_quit = intern ("inhibit-quit");
Qmacro = intern ("macro");
staticpro (&Qmacro);
+ Qdeclare = intern ("declare");
+ staticpro (&Qdeclare);
+
/* Note that the process handling also uses Qexit, but we don't want
to staticpro it twice, so we just do it here. */
Qexit = intern ("exit");
Qdefun = intern ("defun");
staticpro (&Qdefun);
+ Qdefvar = intern ("defvar");
+ staticpro (&Qdefvar);
+
Qand_rest = intern ("&rest");
staticpro (&Qand_rest);
staticpro (&Qand_optional);
DEFVAR_LISP ("stack-trace-on-error", &Vstack_trace_on_error,
- "*Non-nil means automatically display a backtrace buffer\n\
-after any error that is handled by the editor command loop.\n\
-If the value is a list, an error only means to display a backtrace\n\
-if one of its condition symbols appears in the list.");
+ doc: /* *Non-nil means errors display a backtrace buffer.
+More precisely, this happens for any error that is handled
+by the editor command loop.
+If the value is a list, an error only means to display a backtrace
+if one of its condition symbols appears in the list. */);
Vstack_trace_on_error = Qnil;
DEFVAR_LISP ("debug-on-error", &Vdebug_on_error,
- "*Non-nil means enter debugger if an error is signaled.\n\
-Does not apply to errors handled by `condition-case' or those\n\
-matched by `debug-ignored-errors'.\n\
-If the value is a list, an error only means to enter the debugger\n\
-if one of its condition symbols appears in the list.\n\
-See also variable `debug-on-quit'.");
+ doc: /* *Non-nil means enter debugger if an error is signaled.
+Does not apply to errors handled by `condition-case' or those
+matched by `debug-ignored-errors'.
+If the value is a list, an error only means to enter the debugger
+if one of its condition symbols appears in the list.
+When you evaluate an expression interactively, this variable
+is temporarily non-nil if `eval-expression-debug-on-error' is non-nil.
+See also variable `debug-on-quit'. */);
Vdebug_on_error = Qnil;
DEFVAR_LISP ("debug-ignored-errors", &Vdebug_ignored_errors,
- "*List of errors for which the debugger should not be called.\n\
-Each element may be a condition-name or a regexp that matches error messages.\n\
-If any element applies to a given error, that error skips the debugger\n\
-and just returns to top level.\n\
-This overrides the variable `debug-on-error'.\n\
-It does not apply to errors handled by `condition-case'.");
+ doc: /* *List of errors for which the debugger should not be called.
+Each element may be a condition-name or a regexp that matches error messages.
+If any element applies to a given error, that error skips the debugger
+and just returns to top level.
+This overrides the variable `debug-on-error'.
+It does not apply to errors handled by `condition-case'. */);
Vdebug_ignored_errors = Qnil;
DEFVAR_BOOL ("debug-on-quit", &debug_on_quit,
- "*Non-nil means enter debugger if quit is signaled (C-g, for example).\n\
-Does not apply if quit is handled by a `condition-case'.");
+ doc: /* *Non-nil means enter debugger if quit is signaled (C-g, for example).
+Does not apply if quit is handled by a `condition-case'.
+When you evaluate an expression interactively, this variable
+is temporarily non-nil if `eval-expression-debug-on-quit' is non-nil. */);
debug_on_quit = 0;
DEFVAR_BOOL ("debug-on-next-call", &debug_on_next_call,
- "Non-nil means enter debugger before next `eval', `apply' or `funcall'.");
+ doc: /* Non-nil means enter debugger before next `eval', `apply' or `funcall'. */);
DEFVAR_BOOL ("debugger-may-continue", &debugger_may_continue,
- "Non-nil means debugger may continue execution.\n\
-This is nil when the debugger is called under circumstances where it\n\
-might not be safe to continue.");
+ doc: /* Non-nil means debugger may continue execution.
+This is nil when the debugger is called under circumstances where it
+might not be safe to continue. */);
debugger_may_continue = 1;
DEFVAR_LISP ("debugger", &Vdebugger,
- "Function to call to invoke debugger.\n\
-If due to frame exit, args are `exit' and the value being returned;\n\
- this function's value will be returned instead of that.\n\
-If due to error, args are `error' and a list of the args to `signal'.\n\
-If due to `apply' or `funcall' entry, one arg, `lambda'.\n\
-If due to `eval' entry, one arg, t.");
+ doc: /* Function to call to invoke debugger.
+If due to frame exit, args are `exit' and the value being returned;
+ this function's value will be returned instead of that.
+If due to error, args are `error' and a list of the args to `signal'.
+If due to `apply' or `funcall' entry, one arg, `lambda'.
+If due to `eval' entry, one arg, t. */);
Vdebugger = Qnil;
DEFVAR_LISP ("signal-hook-function", &Vsignal_hook_function,
- "If non-nil, this is a function for `signal' to call.\n\
-It receives the same arguments that `signal' was given.\n\
-The Edebug package uses this to regain control.");
+ doc: /* If non-nil, this is a function for `signal' to call.
+It receives the same arguments that `signal' was given.
+The Edebug package uses this to regain control. */);
Vsignal_hook_function = Qnil;
- Qmocklisp_arguments = intern ("mocklisp-arguments");
- staticpro (&Qmocklisp_arguments);
- DEFVAR_LISP ("mocklisp-arguments", &Vmocklisp_arguments,
- "While in a mocklisp function, the list of its unevaluated args.");
- Vmocklisp_arguments = Qt;
-
DEFVAR_LISP ("debug-on-signal", &Vdebug_on_signal,
- "*Non-nil means call the debugger regardless of condition handlers.\n\
-Note that `debug-on-error', `debug-on-quit' and friends\n\
-still determine whether to handle the particular condition.");
+ doc: /* *Non-nil means call the debugger regardless of condition handlers.
+Note that `debug-on-error', `debug-on-quit' and friends
+still determine whether to handle the particular condition. */);
Vdebug_on_signal = Qnil;
+ DEFVAR_LISP ("macro-declaration-function", &Vmacro_declaration_function,
+ doc: /* Function to process declarations in a macro definition.
+The function will be called with two args MACRO and DECL.
+MACRO is the name of the macro being defined.
+DECL is a list `(declare ...)' containing the declarations.
+The value the function returns is not used. */);
+ Vmacro_declaration_function = Qnil;
+
Vrun_hooks = intern ("run-hooks");
staticpro (&Vrun_hooks);
HCoop / bpt / emacs.git / blobdiff